No. 1, February, 1921] MORPHOLOGY, ETC., VASC. PLANTS 49 



splitting occurs; that in all there is more or less of an inversion of the fibro-vascular bundle 

 upon itself; that no absolute identity of cotyledonary and radicular bundles exists, but that 

 always there are additions of recent tissues in higher parts. Passage from alternate to col- 

 lateral arrangement follows two methods. A gradual differentiation of vessels occurs along 

 certain lines, curved in cross-section, connecting the xylem and phloenf poles. Considered 

 longitudinally a progressive displacement of vessels combined with appearance of new ele- 

 ments in appropriate directions takes place. — /. P. Kelly. 



328. MiLBRAED, J. Paraphyadanthe Mildbr. nov. gen. Flacourt. Ein interessanter Fall 

 von "Rhizanthie" aus Kamerun. [Paraphyadanthe Mildbr., a new genus of Flacourtiaceae. 

 An interesting case of "rhizanthy" from Kamerun,] Notizbl. Bot. Gart. Berlin 7:399-405. 

 Fig. A-0. 1920. 



329. Nicolas, G. Biologie florale de quelques ombelliferes Nord-Africanes. [Floral 

 biology of some North African umbellifers.] Rev. Gen. Bot. 32: 230-234. 1920.— Andro- 

 monoecism, or the presence of staminate and hermaphrodite flowers on the same plant, is very 

 rare in the plant kingdom as a whole, but is comparatively common in the Umbelliferae. 

 LoEW found this condition in more than forty out of sixty-six European species. Some 

 species are staminate, hermaphrodite, and andromonoecious in dififerent geographic regions. 

 To the list of sixteen species stated by Loew to be exclusively hermaphroditic in Europe, 

 four North African species are added: Ptychotis ammoides Koch., Daucus aureus Desf., 

 Torilis neglecta Roemer & Schultes, and T. nodosa Gaertn. The andromonoecious condi- 

 tion holds in Scandix Pecten-Veneris L., Hippomarathrum pterochlaenum Bossier, Ferula 

 communis L., F. sulcata Desf., and Daucus setifolius Desf. In these forms the hermaphroditic 

 flowers always occupy the summits of the primary and secondary axes, while the more numer- 

 ous staminate flowers are either mixed with them or are grouped alone on the secondary and 

 tertiary axes. — L. W. Sharp. 



330. Prankerd, T. L. On some new types of statocyte occurring in vascular plants. 

 [Abstract.] Rept. British Assoc. Adv. Sci. 1919: 335. 1920. 



331. Rydberg, p. a. [Rev. of: Henry, Augustine, and Margaret G. Flood. The 

 Douglas Fir. Proc. Roy. Irish Acad. Sec. B. 35:67-92. PI. 12-14. 1920.] Torreya 20: 

 102-104. 1920. 



332. Salisbury, E. J. Monocotyledonous features of the Ranunculaceae with special 

 reference to the floral structure. [Abstract.] Rept. British Assoc. Adv. Sci. 1919:336. 

 1920. 



333. Small, James. The origin and development of the Compositae. xii + SS4 p. Wil- 

 liam Wesley and Son: London, 1919.— A reprint of the author's series of papers under the 

 same title which have appeared during the last two years in the New Phytologist. (See Bot. 

 Absts. 2: 72, 73, 74, 75; 3: 1142; 5: 720, 721.) 



334. Soueges, Ren^:. Embryogenie des Oenotheracees. Developpement de I'embryon 

 chez 1' Oenothera biennis L. [The embryogeny of the Oenotheraceae. The development of 

 the embryo of Oenothera biennis.] Compt. Rend. Acad. Sci. Paris 170:946-949. 11 fig. 

 1920.— The 4-celled stage resembles that of most angiosperms. The upper 2 cells give rise 

 to the cotyledons and the hypocotyl. The middle cell develops very early into the hypo- 

 physis, and the lower to the few-celled suspensor. — C. H. Farr. 



335. Thompson, John McLean. The morphology of the stele of Platyzoma microphyllum. 

 [Abstract.] Rept. British Assoc. Adv. Sci. 1919:332-333. 1920. 



336. Vuillemin, P. L'amphigonelle et la phylogenie des amentales. [The "amphigonelle" 

 and the phylogeny of the Amentales.] Ann. Sci. Nat. Bot. X, 1: 139-200. 1919.— Author is 

 adverse to use of word flower for precise scientific writing; amphigonelle is his term for type of 



